configure: Include <sys/types.h> before including <linux/joystick.h>.
diff --git a/configure.ac b/configure.ac
index 6d9e2cf..c9766dc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1302,6 +1302,7 @@
    	wine_cv_linux_joystick_22_api,
 	AC_TRY_COMPILE([
 	#include <sys/ioctl.h>
+	#include <sys/types.h>
 	#include <linux/joystick.h>
 
 	struct js_event blub;